An investigationwasconductedtodeterminetheeffectsoftheheavymetal,cadmium(Cd),onthegills of theteleostfish, Thalassomapavo Linnaeus,1758.Thefisheswereexposedtoseveralsublethal concentrationsofcadmium(10,40,60and120 mM (mg/L))foraperiodof48,96and192h.Thevalueof the LC50after96hofcadmiumexposure,determinedusingtheSystemofFinney,wasequalto 128.3 mM. Thegillsofthefisheswereexaminedbylightandelectronmicroscopy.Toxic,apoptoticand cadmiumeffectswereanalyzedusingsomeneuropeptides,metallothioneins(MT),caspase3,PCNAand calmodulin,asbioindicators,respectively.Theresultsshowedthatthealterationsinthegillswere proportional totheexposureperiodsandconcentrationsofthemetal,whichwerefoundtobebothdose and timedependent.Thebiologicalresponsesinthegillsofthetestedanimalsarediscussedinrelation to resultsobtainedbyanalysisofthebiomarkers.Thesedatamaybeusedfortheplanningofamodelto determine biologicalriskinthemarineenvironmentandmaybeparticularlyusefultoinvestigate organismsexposedtocadmium.
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Titolo: | Ultrastructural and immunohistochemical investigation on the gills of the teleost, Thalassoma pavo L., exposed to cadmium |
Autori: | |
Data di pubblicazione: | 2011 |
Rivista: | |
Handle: | http://hdl.handle.net/20.500.11770/145340 |
Appare nelle tipologie: | 1.1 Articolo in rivista |